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    Are you looking for some new and exciting places to take your kids to? Try some of these  places:

    Head to a natural history museum. This is where kids can discover the past from Dinosaur (恐龙) models to rock collections and pictures of stars in the sky. Also, ask what kind of workshops and educational programs are prepared for kids and any special events that are coming up.

    Go to a Youtheater. Look for one in your area offering plays for child and family visitors. Pre-show play shops are conducted by area artists and educators where kids can discover the secret about performing arts. Puppet (木偶) making and stage make-up are just a couple of the special offerings you might find.

    Visit art museums. They offer all kinds of activities to excite your kids' interest. Many offer workshops for making hand-made pieces, traveling exhibits, book signings( 签名) by children's favorite writers, and even musical performances and other arts.

    Try hands-on science. Visit one of the many hands-on science museums around the country. These science play-lands are great fun for kids and grown-ups alike. They'll keep your child mentally and physically active the whole day through while pushing buttons, experimenting, and building. When everyone is tired, enjoy a fun family science show, commonly found in these museums.

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同类题2

Ⅰ.科学家往小球藻培养液中通入14CO2后,分别给予小球藻不同时间的光照,结果如下表:

实验组别

光照时间(s)

放射性物质分布

1

2

大量3﹣磷酸甘油酸(三碳化合物)

2

20

12种磷酸化糖类

3

60

除上述12种磷酸化糖类外,还有氨基酸、有机酸等

根据上述实验结果分析,回答下列问题:

(1)本实验利用小球藻研究的是光合作用的____  阶段.

(2)每组照光后需将小球藻进行____  处理,才能测定放射物质分布.

(3)CO2进入叶绿体后,最初形成的物质是____  .

(4)实验结果说明光合作用产生的有机物包括____ .

Ⅱ.为了探究不同条件对植物光合速率和呼吸速率的影响,用8株都具有20片叶片、且大小长势相似的某种盆栽植株,分别放在密闭的玻璃容器中,在不同条件下利用传感器定时测定密闭容器中二氧化碳的含量,实验结果统计如下表:

编号

1

2

3

4

5

6

7

8

温度(℃)

10

10

20

20

30

30

40

40

光照强度(lx)

1000

0

1000

0

1000

0

1000

0

开始时CO2量(g)

5.0

5.0

5.

5.0

5.0

5.0

5.0

5.0

12hCO2量(g)

4.5

5.1

3.5

5.4

1.9

5.9

2.0

5.8

(1)编号为1、3、5、7的装置可构成一个相对独立的实验组合,在该实验组合中,自变量是____  ,无关变量是____  (至少答2个)

(2)编号为2、4、6、8的装置可构成一个相对独立的实验组合,该实验组合的目的是探究____ 

(3)在编号为2的装置中,叶肉细胞产生ATP的场所是 ____ .

(4)科研人员在该植株幼苗中发现了一株叶黄素缺失突变体,将其叶片进行红光照射光吸收测定和色素层析条带分析,与正常叶片相比,实验结果是:光吸收差异____ (填“显著”或“不显著”),色素带缺少第____  条(从上至下).